Broadcast on 103.2 Dublin City FM on 3rd February 2011 IMAGE: Cover of 'Stone by Stone' a guide to the use of building stone in Northern Ireland [Credit: Appletree Press Ltd]  What's it all about? Geophysics explained by Prof Chris Bean, School of Geosciences at UCD.  The question is? Will nanotechnology change the world, and if so, how? We ask Aidan Quinn, Head of the Nanotechnology Research Unit at the Tyndall National Institute  Writer's room. We talk to Dawson Stellfox, editor of 'Stone by Stone' a book that advocates use of native Irish stone in buildings here.  To contact the show email: sciencespinning@dublincityfm.ie For more about the presenter visit: Science Spinning